Alonso has passed concussion protocol after being hit in the head/neck area by a pitch in Saturday's loss to the Angels, Anthony DiComo of MLB.com reports.
Alonso was plunked by a wild breaking ball from Halos reliever Jose Soriano in the eighth inning and was removed from the game for a pinch runner. It sounds like he's going to be fine, though, with Mets manager Buck Showalter saying he doesn't anticipate the slugger needing to undergo any more tests in the morning.